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672208 = 2442013
BaseRepresentation
bin10100100000111010000
31021011002121
42210013100
5133002313
622224024
75466535
oct2440720
91234077
10672208
1141a049
12285014
131a6c74
14136d8c
15d428d
hexa41d0

672208 has 10 divisors (see below), whose sum is σ = 1302434. Its totient is φ = 336096.

The previous prime is 672193. The next prime is 672209. The reversal of 672208 is 802276.

It can be written as a sum of positive squares in only one way, i.e., 627264 + 44944 = 792^2 + 212^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20991 + ... + 21022.

2672208 is an apocalyptic number.

It is an amenable number.

672208 is a deficient number, since it is larger than the sum of its proper divisors (630226).

672208 is a wasteful number, since it uses less digits than its factorization.

672208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42021 (or 42015 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 672208 is about 819.8829184707. The cubic root of 672208 is about 87.5994189685.

The spelling of 672208 in words is "six hundred seventy-two thousand, two hundred eight".

Divisors: 1 2 4 8 16 42013 84026 168052 336104 672208